OneDor Unprocessed Virgin Mongolian Afro Kinky Curly Human Hair Weave Extensions for Black Women Natural Black 100g/Bundle (1 Bundle 12"). Our hair is real virgin human hair without processing, so there is natural color only (natural black), you can dye and bleach it any color by a professional. Each piece weighs 95-100 grams (3.35-3.52 oz). Normally 3 pieces are perfect for one full head. Three different length make it looks more nature and in style.